Goodwill and Other Intangible Assets - Summary of Finite-Lived Intangible Assets (Details) - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021
Finite-Lived Intangible Assets, Net [Abstract]
Gross Carrying Amount	$ 84,962	$ 84,962
Accumulated Amortization	(64,792)	(60,864)
Net Carrying Amount	20,170	24,098
Core deposit intangibles
Finite-Lived Intangible Assets, Net [Abstract]
Gross Carrying Amount	82,492	82,492
Accumulated Amortization	(63,190)	(59,399)
Net Carrying Amount	19,302	23,093
Customer relationship intangible
Finite-Lived Intangible Assets, Net [Abstract]
Gross Carrying Amount	2,470	2,470
Accumulated Amortization	(1,602)	(1,465)
Net Carrying Amount	$ 868	$ 1,005